How to render an animation in EEVEE with Anti Aliasing off?
You can disable sample from nearby pixel to turn off anti-aliasing effect in EEVEE. The detail can be found in here.

Properties Panel: Scene &rarr; Film &rarr; Filter Size: 0.00 px



Once you disable the anti-aliasing, you can now scale up the final render to emphasis on that jagged part.

Compositing method:



Or using a value to change it for ease: